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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+8.67%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$23B
AUM Growth
+$1.22B
Cap. Flow
-$156M
Cap. Flow %
-0.68%
Top 10 Hldgs %
22.7%
Holding
1,905
New
81
Increased
568
Reduced
855
Closed
91

Top Buys

Rank Stock Value
1
POOL icon
Pool Corp
POOL
+$43.2M
2
TEAM icon
Atlassian
TEAM
+$36.6M
3
NOVT icon
Novanta
NOVT
+$28.8M
4
PANW icon
Palo Alto Networks
PANW
+$23.2M
5
MSI icon
Motorola Solutions
MSI
+$20.1M

Top Sells

Rank Stock Value
1
ABMD
Abiomed Inc
ABMD
+$103M
2
PYPL icon
PayPal
PYPL
+$28.4M
3
DIS icon
Walt Disney
DIS
+$26.7M
4
KMX icon
CarMax
KMX
+$25.2M
5
CRM icon
Salesforce
CRM
+$24.3M

Sector Composition

Rank Sector Weight
1 Technology 22.31%
2 Healthcare 19.82%
3 Financials 12.49%
4 Industrials 11.58%
5 Consumer Discretionary 8.46%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NEPH icon
1576
Nephros
NEPH
$47.4M
$41.9K ﹤0.01%
36,249
– –
KBWB icon
1577
Invesco KBW Bank ETF
KBWB
$6.85B
$41.5K ﹤0.01%
803
-13
-2% -$682
AWRE icon
1578
Aware
AWRE
$26M
$40.5K ﹤0.01%
23,664
– –
FTSL icon
1579
First Trust Senior Loan Fund ETF
FTSL
$2.33B
$40.2K ﹤0.01%
901
+178
+25% +$7.98K
PWV icon
1580
Invesco Large Cap Value ETF
PWV
$1.78B
$40K ﹤0.01%
850
– –
MODD icon
1581
Modular Medical
MODD
$11.2M
$40K ﹤0.01%
667
– –
ITEQ icon
1582
Amplify BlueStar Israel Technology ETF
ITEQ
$118M
$39.6K ﹤0.01%
900
– –
PAYS icon
1583
Paysign
PAYS
$723M
$39K ﹤0.01%
15,120
– –
OUST icon
1584
Ouster
OUST
$3.33B
$37.4K ﹤0.01%
4,330
– –
PKW icon
1585
Invesco BuyBack Achievers ETF
PKW
$1.78B
$37.2K ﹤0.01%
435
– –
EZM icon
1586
WisdomTree US MidCap Fund
EZM
$957M
$37.2K ﹤0.01%
765
– –
VTWV icon
1587
Vanguard Russell 2000 Value ETF
VTWV
$1.37B
$37.1K ﹤0.01%
305
– –
SLQT icon
1588
SelectQuote
SLQT
$124M
$37K ﹤0.01%
+55,000
New +$36K
COPX icon
1589
Global X Copper Miners ETF NEW
COPX
$8.22B
$36.9K ﹤0.01%
1,041
– –
IBDP
1590
DELISTED
iShares iBonds Dec 2024 Term Corporate ETF
IBDP
$36.6K ﹤0.01%
1,500
– –
SJNK icon
1591
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.8B
$36.6K ﹤0.01%
1,509
+208
+16% +$5.05K
OPEN icon
1592
Opendoor
OPEN
$3.39B
$36.2K ﹤0.01%
32,268
-24,879
-44% -$47.7K
SMOG icon
1593
VanEck Low Carbon Energy ETF
SMOG
$136M
$35.9K ﹤0.01%
324
+4
+1% +$459
SPYX icon
1594
State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF
SPYX
$2.87B
$35.1K ﹤0.01%
1,128
– –
FPX icon
1595
First Trust US Equity Opportunities ETF
FPX
$1.53B
$35K ﹤0.01%
445
+5
+1% +$418
STPZ icon
1596
PIMCO 1-5 Year US TIPS Index Exchange-Traded Fund
STPZ
$524M
$35K ﹤0.01%
702
+57
+9% +$2.85K
CELL
1597
DELISTED
PhenomeX Inc. Common Stock
CELL
$35K ﹤0.01%
13,055
-400
-3% -$1.05K
INSG icon
1598
Inseego
INSG
$82.6M
$35K ﹤0.01%
4,150
-1,150
-22% -$17.3K
DTH icon
1599
WisdomTree International High Dividend Fund
DTH
$659M
$34.7K ﹤0.01%
968
– –
BRF icon
1600
VanEck Brazil Small-Cap ETF
BRF
$20.4M
$34.7K ﹤0.01%
2,572
– –
62 63
64
65 66

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William Blair & Company's Q4 2022 Portfolio in Review

As of Q4 2022, William Blair & Company held 1,905 positions worth $23B, up 5.6% from $21.8B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

William Blair & Company's Q4 2022 filing shows 81 new, 568 increased, 855 reduced and 91 closed positions. Its largest new stake was Atlassian: 230,078 shares worth $29.6M. The largest sale was Abiomed Inc, an estimated $103M.

By sector, the portfolio is most concentrated in Technology at 22% of assets, down from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2022 buy was Atlassian: 230,078 shares worth $29.6M.
  • William Blair & Company added most to Pool Corp in Q4 2022, an estimated $43.2M increase.
  • William Blair & Company's biggest Q4 2022 reduction was PayPal, cutting an estimated $28.4M.
  • William Blair & Company fully exited Abiomed Inc in Q4 2022, selling an estimated $103M.
  • William Blair & Company's ten largest holdings make up 23% of its $23B portfolio in Q4 2022.
  • William Blair & Company opened 81 new positions and closed 91 in Q4 2022.
  • William Blair & Company's portfolio value rose 5.6% quarter-over-quarter to $23B.

Based on William Blair & Company's 13F filing for Q4 2022, filed 10 Feb 2023.